Column 1 Column 2 Column 3 Column 4 0 6/30/2016 893,162 55,920 15.972139 1 6/15/2016 819,380 30,507 26.858754 2 5/31/2016 846,659 47,009 18.010572 3 5/13/2016 865,753 36,374 23.801424 4 4/29/2016 845,918 36,239 23.342752